Ron,
Here are the contents of the package.json file

{
    "name": "apiserver-react",
    "version": "1.0.0",
    "description": "",
    "main": "main.js",
    "scripts": {
        "start": "webpack-dev-server --hot"
    },
    "author": "",
    "license": "ISC",
    "dependencies": {
        "axios": "^0.18.0",
        "babel-core": "^6.26.3",
        "babel-loader": "^7.1.4",
        "babel-preset-es2015": "^6.24.1",
        "babel-preset-react": "^6.24.1",
        "react": "^16.4.1",
        "react-dom": "^16.4.1",
        "webpack": "^4.12.0",
        "webpack-dev-server": "^3.1.4"
    }
}

EDIT: "start" not "script"